SandTEngineer
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« Reply #30 on: August 25, 2017, 17:23:34 » |
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Presumably one of the major aspects is the Wimbledon panel changes, because that is very much a hardware panel as opposed to a display?
Possibly. But the panel there consists of 48x48mm tiles with 'plug-in' LED indications so relatively easy to alter. The actual wiring is directly fed to/from a remote control system (ex-ML Engineering Ltd TEML-41) that is housed in the control desk, so again fairly easy to re-program/rewire.
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paul7575
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« Reply #31 on: August 25, 2017, 23:24:26 » |
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Another question would concern gauging for the various rolling stock to be used. Would they have to physically test that, or just rely on accurate measurement? I understood the existing Waterloo had all sorts of limitations as to which platforms could accept certain units or coaching stock, so hopefully they've allowed for more flexible use than before...
Paul
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SandTEngineer
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« Reply #32 on: August 26, 2017, 08:06:12 » |
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....and of course there is the traction conductor rail to test for gapping etc. Calling ET
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Electric train
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« Reply #33 on: August 26, 2017, 11:16:23 » |
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....and of course there is the traction conductor rail to test for gapping etc. Calling ET Section and sub section proving is done as a "dead" test now ie uses a low voltage continuity test, the only "live" test will be track "alive" at the track circuit breakers if the circuit breakers are renewed; as Waterloo station has "stub end feeds" into the platform the E & P Engineer may ask for a live line tester (used to be a "crate of eggs" but these have more or less been banned from use) at the stop block ends. Gauging is done by measurement, a hand trolley is initially used which has GPS and laser alinement instruments also the tamper will give accurate positioning and finally any pinch points can be checked by hand
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Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
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SandTEngineer
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« Reply #34 on: August 27, 2017, 14:56:01 » |
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This was posted on the WNXX▸ Forum earlier today: The Industrial Action involving platforms 7 & 8 at Waterloo discussed upstream has been suspended for 8 weeks to allow NR» to plan an engineering solution to the signalling issues raised. For the 8 weeks trains over 8 cars require an additional person holding driver competancy to assist with signal sighting during dispatch when leaving platforms 7 or 8.
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stuving
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« Reply #35 on: August 27, 2017, 16:39:25 » |
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Gauging is done by measurement, a hand trolley is initially used which has GPS and laser alinement instruments also the tamper will give accurate positioning and finally any pinch points can be checked by hand
Or, have they come over all up-to-date, with gauging done in the CAD/CAE and the track measured to check whether as built=as drawn? Though that's not a huge difference, in practice, but I'm sure that will have been done to the platforms and any other structures.
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Electric train
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« Reply #36 on: August 28, 2017, 09:28:43 » |
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Gauging is done by measurement, a hand trolley is initially used which has GPS and laser alinement instruments also the tamper will give accurate positioning and finally any pinch points can be checked by hand
Or, have they come over all up-to-date, with gauging done in the CAD/CAE and the track measured to check whether as built=as drawn? Though that's not a huge difference, in practice, but I'm sure that will have been done to the platforms and any other structures. Yes gauging is done at the design stage, its one of the Interdisciplinary Checks (IDC) carried out by the Contractors Engineering Manager (CEM) and his/ her Contractors Responsible Engineers ( CRE» ) one per discipline (Track, E&P S&T▸ Structures etc) then the NR» DPE (Designated Project Engineer) and his / her team of Project engineers carry out an IDR (Interdisciplinary Review) this is not the same as an IDC more an over view to ensure the IDC has be rigorous. From the design data would be issued for the test and inspect checks as its built and then finally there is the commissioning and Entry into Service ( EIS▸ ) each discipline has it own process for this but all the certs need to come together for the CEM to enter it into service, note its the contractor who takes this responsibility as its their liability. So in a nutshell there still needs to be some physical measurements taken on site most are done by machines either by laser and GPS or with a gauging profile fitted but there are some places where manual methods are still used
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Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
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Surrey 455
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« Reply #37 on: August 28, 2017, 19:44:12 » |
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South Western Railway Alert Service < noreply@nexusalpha.com> 17:51 (1 hour ago) to me Dear Customer, A further five platforms at London Waterloo had to be closed from 16:00 this afternoon to help support the ongoing engineering works, resulting in platforms 1 -19 being closed. Train services running across the whole South Western Railway network may be delayed or revised. We are anticipating disruption until the end of the day. What We're Doing About It Services from Exeter St. Davids will terminate at Basingtoke.You should change at Basingstoke to the next available London Waterloo bound service to continue your journey. Services to Exeter St. Davids will commence from Basingstoke.You should travel on a Basingstoke, Bournemouth, Southampton Central or Weymouth bound service and change at Basingstoke. Services to and from Guildford via Epsom will be suspended. You may use Southern services to and from London Victoria via Clapham Junction. How We're Helping You Complete Your Journey You may use your rail ticket on: - Southern services via any reasonable route. - Thameslink services via any reasonable route. - Great Western Railway services via any reasonable route. - Cross Country services between Bournemouth and Reading via Basingstoke. - London Underground services via any reasonable route. - TFL▸ buses across the South Western Railway network. Replacement buses will be in operation between Guildford and Leatherhead in both directions, operating every half hour, commencing from Guildford at approximately 18:00 and Leatherhead at approximately 18:30. We are in the process of organising supplemental road transport. More details will be provided as soon as they have been confirmed. The reduction in services will mean that trains will be much busier than normal. We strongly recommend you allow extra time to travel and check your journey before setting off by using http://www.nationalrail.co.uk/. We apologise for the disruption to your journey today. Thank you, South Western Railway Will they finish tonight? I'm starting to worry about my journey to work tomorrow now. I'm expecting to wake up, turn my phone on and see multiple emails from SWR» have arrived warning of delays and cancellations.
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TaplowGreen
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« Reply #38 on: August 28, 2017, 21:03:11 » |
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Unconfirmed but I'm hearing they're running 24 hours late.
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TaplowGreen
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« Reply #39 on: August 29, 2017, 06:58:35 » |
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paul7575
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« Reply #40 on: August 29, 2017, 08:07:22 » |
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Trains now (0800) appear to be running from most of the expected platforms for today, i.e. 1-20. Not sure what proportion of the original timetable for today is running though.
Update at 1337, full timetable hoped for by 1400.
Paul
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« Last Edit: August 29, 2017, 13:37:45 by paul7755 »
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eightf48544
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« Reply #41 on: August 30, 2017, 09:25:37 » |
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Further Problems today some lines blocked.
Not a good start for South Western Railways
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stuving
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« Reply #42 on: August 30, 2017, 09:58:23 » |
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Further Problems today some lines blocked.
Not a good start for South Western Railways
Yes, I heard that on the news this morning. However, having run through the arrivals into Waterloo up to 9:00 I can only see one that's over 10 minutes late, and that was less than 20 minutes lost around Raynes Park. So was there a problem with the signals - or someone in BBC» local news having a problem with telling today's reports from yesterday's?
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paul7575
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« Reply #43 on: August 30, 2017, 17:34:35 » |
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Yes, I heard that on the news this morning. However, having run through the arrivals into Waterloo up to 9:00 I can only see one that's over 10 minutes late, and that was less than 20 minutes lost around Raynes Park. So was there a problem with the signals - or someone in BBC» local news having a problem with telling today's reports from yesterday's?
IIRC▸ the opentraintimes live map showed P1 blocked for a fairly short time. The BBC tend to report these things as though the world is about to end, and then leave the story 'live' all day... Probably the usual sort of teething troubles. Paul
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stuving
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« Reply #44 on: August 30, 2017, 22:52:12 » |
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BBC» South Today just now were reporting that the low-numbered platforms (not sure how many) will close again tonight, for more fixing. There was talk about people being unaware of their last train being cancelled. This is on SWR» 's site, though not in all the obvious places: Alterations to services due to additional late night engineering works at London Waterloo
We have been advised that access is required at London Waterloo station from 22:45 to work on signalling equipment, this access will limit the number of platforms trains can use.
Seven trains will be altered this evening and advertised trains may leave London Waterloo from different platforms.
The following services have been amended:
· 21:33 London Waterloo via Twickenham train will terminate at Raynes Park · 21:46 Guildford to London Waterloo train will terminate at Wimbledon · 22:07 Guildford to London Waterloo train will terminate at Wimbledon · 22:57 London Waterloo via Twickenham train will start at Raynes Park · 22:15 Alton to London Waterloo train will terminate at Surbiton · 23:03 London Waterloo to Guildford train will start at Wimbledon · 23:48 London Waterloo to Basingstoke train will start at Surbiton
If you are travelling from London Waterloo station later tonight, you are advised to check your journey before travelling.
If you have advanced booked tickets for these trains, you will be able to travel on alternative trains. So that looks like a case of having to take an alternative train and change - the question is whether in any cases the Waterloo departure is earlier.
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